Port Jefferson Sea Conditions and Tide Table

Port Jefferson Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:03 AM and sunset is at 04:42 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Mon morning. Cool air temperatures (max 11°C on Mon afternoon, min 6°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Very mild (max 14°C on Fri afternoon, min 7°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Heavy rain (total 39mm), heaviest during Mon night. Very mild (max 11°C on Sun morning, min 3°C on Tue night). Wind will be generally light.

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
4:38PM3.39m
7:33AM3.64m
5:22PM3.26m
8:32AM3.59m
6:11PM3.04m
9:33AM3.53m
7:11PM2.76m
10:33AM3.48m
8:31PM2.47m
11:29AM3.45m
10:14PM2.26m
12:17PM3.41m
00:05AM2.25m
12:57PM3.37m
1:38AM2.40m
1:31PM3.30m
2:49AM2.63m
1:59PM3.22m
3:45AM2.87m
2:23PM3.13m
4:32AM3.07m
2:45PM3.05m
5:14AM3.22m
Low Tide
11:45AM2.14m
11:59PM-1.04m
12:39PM2.27m
00:48AM-0.90m
1:41PM2.34m
1:41AM-0.62m
2:55PM2.30m
2:38AM-0.25m
4:26PM2.12m
3:40AM0.15m
5:53PM1.80m
4:46AM0.55m
6:56PM1.39m
5:53AM0.91m
7:42PM0.99m
8:20PM0.63m
7:55AM1.49m
8:53PM0.32m
8:47AM1.72m
9:22PM0.08m
9:33AM1.91m
9:51PM-0.11m
Wave
height (m) 
direction
period (s) 
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
light rain
mod rain
mod rain
heavy rain
rain showers
clear
clear
some clouds
clear
some clouds
clear
some clouds
some clouds
some clouds
some clouds
cloudy
light rain
light rain
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
clear
clear
some clouds
some clouds
cloudy
light rain
mod rain
mod rain
heavy rain
rain shwrs
clear
clear
 km/h
15
SSW
5
N
0
NE
5
NNE
5
N
5
NNE
5
SSE
5
S
5
SSE
0
ESE
0
S
10
E
5
SSE
10
N
5
N
5
N
5
N
5
NE
5
E
5
NNE
10
SSE
15
S
15
S
5
SSE
10
S
5
SSE
0
WNW
5
NNE
5
NE
5
SSE
5
NNW
5
N
10
SSW
15
S
5
S
5
S
 mm 
4
1
2
8
7
20
2
max°C
11
11
9
10
10
8
12
14
12
10
11
10
10
9
7
10
9
10
11
11
12
13
14
11
13
13
9
11
10
9
9
8
8
9
9
5
Moonrise
5:59
7:07
8:24
9:45
11:03
12:17
1:28
2:36
3:44
4:51
5:59
Moonset
10:23
11:32
12:24
1:00
1:26
1:46
2:02
2:17
2:30
2:44
3:00
3:19
Sunrise
7:03
7:05
7:05
7:07
7:09
7:11
7:11
7:13
7:15
7:16
7:18
7:20
Sunset
4:42
4:40
4:39
4:37
4:37
4:36
4:35
4:32
4:31
4:30
4:30
4:29
Today's sea temperature in Port Jefferson is 10.8 °C (Statistics for 07 Nov 1981-2005 – mean: 10.1 max: 11.4 min: 9.3°C)
Issued (local time): 3 am Friday 07 Nov 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest